Junction City, Kentucky has a Humid Subtropical Climate climate (Köppen classification: Cfa). Average annual temperatures range from 45.6 °F (low) to 66 °F (high). Annual precipitation averages 49.3 Inches. Junction City is located in USDA Plant Hardiness Zone 7a. The growing season typically runs from the last frost around Apr. 11 - Apr. 20 through the first frost around Oct. 21 - Oct. 31.
| Month | Avg. Low | Avg. High | Avg. Precip |
|---|---|---|---|
| January | 25.1 °F | 42.5 °F | 3.73 in. |
| February | 28.0 °F | 47.0 °F | 3.87 in. |
| March | 34.6 °F | 55.8 °F | 4.83 in. |
| April | 44.3 °F | 66.6 °F | 4.6 in. |
| May | 54.6 °F | 75.1 °F | 5.1 in. |
| June | 62.5 °F | 83.2 °F | 5.32 in. |
| July | 66.1 °F | 85.9 °F | 4.73 in. |
| August | 64.0 °F | 85.7 °F | 3.22 in. |
| September | 57.2 °F | 80.2 °F | 3.65 in. |
| October | 46.0 °F | 68.4 °F | 3.07 in. |
| November | 35.2 °F | 56.2 °F | 3.04 in. |
| December | 29.1 °F | 45.9 °F | 4.17 in. |
| Annual | 45.6 °F | 66 °F | 49.33 in. |
| Average First Frost Date | Oct. 21 - Oct. 31 |
| Average Last Frost Date | Apr. 11 - Apr. 20 |
| Average Days With Frost | 75-100 Days |
| Plant Hardiness Zone | Zone 7a : 0°F to 5°F |
| Plant Hardiness Zone - 2012 | Zone 6b : -5°F to 0°F |
| Current Drought Conditions | Moderate Drought |
| Köppen Climate Classification | Cfa - Humid Subtropical Climate |